Dell YH242 owner manual Vents and any object near the vents

1	cover release latch	Use this latch to remove the cover (see "Removing the Computer Cover" on
		page 78).
2	CD or DVD activity	The CD or DVD drive light is on when the computer reads data from or writes
	light	data to the CD or DVD drive.
3	CD or DVD eject	Press the CD or DVD eject button to eject a disc from the CD or DVD drive.
	button
4	FlexBay drives (2)	Can contain an optional floppy drive or optional Media Card Reader. For
		information on using the Media Card Reader, see "Using a Media Card Reader
		(Optional)" on page 31.
5	vents	For adequate cooling, do not block any of the vents.
		NOTICE: Ensure that there is a minimum of two inches of space between all
		vents and any object near the vents.

NOTICE: Keep the vent area clean and dust-free to ensure that the system is adequately ventilated. Use only a dry cloth to clean the vent area to avoid water damage to the system.

6USB 2.0 connectors (2) Use the front USB connectors for devices that you connect occasionally, such as flash memory keys, cameras, or bootable USB devices. For more information on booting to a USB device, see "System Setup Options" on page 129.

NOTE: It is recommended that you use the back USB connectors for devices that typically remain connected, such as printers and keyboards.

7	power button	Press the power button to turn on the computer.
		NOTICE: To avoid losing data, do not use the power button to turn off the
		computer. Instead, perform an operating system shutdown.
8	hard-drive activity light	The hard-drive light is on when the computer reads data from or writes data to
		the hard drive. The light may also be on when a device such as a CD player is
		operating.
9	diagnostic lights (4)	Use the sequence of the diagnostic lights to help you troubleshoot a problem
		with your computer (see "Diagnostic Lights" on page 65).
10	headphone connector	Use the headphone connector to attach headphones and most kinds of speakers.
11	microphone connector	Use the microphone connector to attach a personal computer microphone for
		voice or musical input into a sound or telephony program.
12	Service Tag	Use the Service Tag to identify your computer when you access the Dell Support
		website or contact support.

14

Setting Up and Using Your Computer